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Simplifying (x + -1)(u + 3) = 1 Reorder the terms: (-1 + x)(u + 3) = 1 Reorder the terms: (-1 + x)(3 + u) = 1 Multiply (-1 + x) * (3 + u) (-1(3 + u) + x(3 + u)) = 1 ((3 * -1 + u * -1) + x(3 + u)) = 1 ((-3 + -1u) + x(3 + u)) = 1 (-3 + -1u + (3 * x + u * x)) = 1 Reorder the terms: (-3 + -1u + (ux + 3x)) = 1 (-3 + -1u + (ux + 3x)) = 1 (-3 + -1u + ux + 3x) = 1 Solving -3 + -1u + ux + 3x = 1 Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '3' to each side of the equation. -3 + -1u + ux + 3 + 3x = 1 + 3 Reorder the terms: -3 + 3 + -1u + ux + 3x = 1 + 3 Combine like terms: -3 + 3 = 0 0 + -1u + ux + 3x = 1 + 3 -1u + ux + 3x = 1 + 3 Combine like terms: 1 + 3 = 4 -1u + ux + 3x = 4 Add '-3x' to each side of the equation. -1u + ux + 3x + -3x = 4 + -3x Combine like terms: 3x + -3x = 0 -1u + ux + 0 = 4 + -3x -1u + ux = 4 + -3x Reorder the terms: -4 + -1u + ux + 3x = 4 + -3x + -4 + 3x Reorder the terms: -4 + -1u + ux + 3x = 4 + -4 + -3x + 3x Combine like terms: 4 + -4 = 0 -4 + -1u + ux + 3x = 0 + -3x + 3x -4 + -1u + ux + 3x = -3x + 3x Combine like terms: -3x + 3x = 0 -4 + -1u + ux + 3x = 0 The solution to this equation could not be determined.
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